21239911

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5869}}^1$

素因数の和:5934

約数の個数: 16

約数和(自身を含む): 27048960

約数和(自身を除く): 5809049

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5869, 41083, 64559, 275843, 451913, 1930901, 3034273, 21239911]

約数ペア:

[(1, 21239911), (7, 3034273), (11, 1930901), (47, 451913), (77, 275843), (329, 64559), (517, 41083), (3619, 5869)]